So, just to review what was already said: x denotes a cross. When used in front of a genus name it indicates that the genus is a hybrid (or intergeneric) genus derived by crossing plants of two different genuses (actually "genera" is the plural of genus, but most people don't know this). When two genera are crossed, a new genus is created, using parts of the names of both parent genera. In gesneriads we have, for example, "x codonatanthus" for hybrids of codonanthe and nematanthus, or "x achimenantha" for hybrids of achimenes and smithiantha. In orchids intergeneric hybrids are often fertile and have been bred with more than two genera such that hybrid genus names have gotten ridiculous. Rather than combine three, four, five or more genera into one looong name they have a system where such new multi-generic hybrid genus names end in the letters "ara". The first one of these was Potinara (Cattleya x Laelia x Sophronitis x brassivola). Now there are hundreds of such combinations. By the way, clone names (i.e. "cultivars") are always shown with single quotes and are capitalized--i.e. Cantua 'Hot Pants'. Also, in writing cross names one should put the female parent first (though this is not necessary). So Sinningia leucotricha x canescens would indicate that leucotricha was the seed parent and canescens was the pollen parent. About capitalizing the "X" in front of genus names--I never knew that. I will have to check with my botanist friend who knows even more silly rules about plant names than I do (by far).

Just not ready yet. Still dig, divide, and replant in the fall - they'll get bigger next year if grown in the right conditions.

It appears to me it says copyright 1905 and the artist's name is Geo. (George) Howell Gay. Can't make out the publisher? below the copyright.

It's not possible to put a gauge on the term "over tighten". Plumbers, pipe fitters, and steam fitters learn through experience how much torque to apply to a fitting. When I was a younger man, I used to ask questions like this. The most cogent answer I got was from an old steam fitter: "Tighten it 'til it feels right."